The objective was to assess the segregation ratio in a Holstein * Gyr population for BoLADBR3.2 and its correlation with multiple ovulation and embryo transfer (MOET). Blood were collected for genotyping 48 F1 and 326 F2 animals. Observed genotypic frequencies were tested (P<0.05). LSM was used to analyze genotype effects on the embryo viability (VE). An increase in frequency of allele 27 was observed. Distortion favouring allele 27 for one F1 sire was found. For one family of this sire, deviation from Mendelian expectations was significant. The effect of genotypes with at least one allele 27 on VE were significant, with mean of 5.70.7. These results showed a relationship between the allele 27 and MOET embryonic viability.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 22.56, 2006
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